Time trends in blue mussel, comparing wet-weight and dry weight concentrations
DHJ
24 11 2020
Statistics
All statistics are for blue mussel
Overview
Number of blue mussel time series per country
## country
## determinand_group Belgium Denmark Faroe Islands France Germany
## Biological effects (other) 0 0 0 0 0
## Chlorobiphenyls 27 5 0 408 42
## Dioxins 0 9 0 72 0
## Imposex 0 0 0 0 0
## Metals 24 155 0 411 24
## Organobromines (other) 0 0 0 140 24
## Organochlorines (other) 12 0 0 108 12
## Organofluorines 0 0 0 23 0
## Organotins 18 35 0 90 0
## PAH alkylated compounds 0 21 0 0 0
## PAH metabolites 0 0 0 0 0
## PAH parent compounds 39 222 0 526 73
## Polybrominated diphenyl ethers 30 0 0 216 60
## country
## determinand_group Iceland Ireland Norway Spain Sweden
## Biological effects (other) 0 0 0 23 0
## Chlorobiphenyls 108 417 259 206 14
## Dioxins 0 24 0 0 0
## Imposex 0 0 0 0 0
## Metals 84 517 398 138 22
## Organobromines (other) 0 0 63 0 2
## Organochlorines (other) 48 180 40 91 8
## Organofluorines 0 0 9 0 0
## Organotins 0 0 31 0 0
## PAH alkylated compounds 0 0 0 0 0
## PAH metabolites 0 0 0 0 0
## PAH parent compounds 168 571 175 230 26
## Polybrominated diphenyl ethers 36 315 116 186 12
## country
## determinand_group The Netherlands United Kingdom
## Biological effects (other) 0 63
## Chlorobiphenyls 9 545
## Dioxins 0 0
## Imposex 0 0
## Metals 8 752
## Organobromines (other) 1 0
## Organochlorines (other) 4 127
## Organofluorines 1 0
## Organotins 6 14
## PAH alkylated compounds 0 278
## PAH metabolites 0 0
## PAH parent compounds 12 1004
## Polybrominated diphenyl ethers 9 175Number of significant linear trends
For metals and chlorobiphenyls separately* Row 1/2: whether time trend of w.w. concentrations was significant on the 0.05 level
* Column 1/2: whether time trend of d.w. concentrations was significant on the 0.05 level
| Metals | ||
| p_linear_trend_dw <= 0.05 | ||
|---|---|---|
| FALSE | TRUE | |
| p_linear_trend_ww <= 0.05 | ||
| FALSE | 817 | 204 |
| TRUE | 163 | 288 |
| Chlorobiphenyls | ||
| p_linear_trend_dw <= 0.05 | ||
|---|---|---|
| FALSE | TRUE | |
| p_linear_trend_ww <= 0.05 | ||
| FALSE | 443 | 56 |
| TRUE | 110 | 368 |
| Polybrominated diphenyl ethers | ||
| p_linear_trend_dw <= 0.05 | ||
|---|---|---|
| FALSE | TRUE | |
| p_linear_trend_ww <= 0.05 | ||
| FALSE | 92 | 17 |
| TRUE | 32 | 35 |
| PAH parent compounds | ||
| p_linear_trend_dw <= 0.05 | ||
|---|---|---|
| FALSE | TRUE | |
| p_linear_trend_ww <= 0.05 | ||
| FALSE | 677 | 78 |
| TRUE | 74 | 197 |
| Organochlorines (other) | ||
| p_linear_trend_dw <= 0.05 | ||
|---|---|---|
| FALSE | TRUE | |
| p_linear_trend_ww <= 0.05 | ||
| FALSE | 152 | 13 |
| TRUE | 24 | 48 |
Trends, up & down
| determinand_group | |||||
|---|---|---|---|---|---|
| Chlorobiphenyls | Metals | Organochlorines (other) | PAH parent compounds | Polybrominated diphenyl ethers | |
| Trend | |||||
| declining (ww & dw) | 354 | 183 | 43 | 162 | 33 |
| declining (ww only) | 104 | 133 | 20 | 56 | 27 |
| declining (dw only) | 37 | 81 | 11 | 52 | 12 |
| increasing (ww & dw) | 14 | 103 | 5 | 33 | 2 |
| increasing (ww only) | 6 | 30 | 4 | 18 | 5 |
| increasing (dw only) | 19 | 123 | 2 | 26 | 5 |
| declining ww, increasing dw | 0 | 2 | 0 | 1 | 0 |
| increasing ww, declining dw | 0 | 0 | 0 | 1 | 0 |
| no trend (ww & dw) | 443 | 817 | 152 | 677 | 92 |
Plots of slope of linear trends
X axis: Slope of time trend (i.e., change per year), wet-weight concentration
Y axis: Slope of time trend (i.e., change per year), wet-weight concentration
- Red line: Regression line (red) calculated using Deming (orthogonal) regression
- Blue dotted line: 1:1 line (same trend using w.w. and d.w. concentration)
Overall per group
Individual compounds
- Blue dotted line: 1:1 line (same trend using w.w. and d.w. concentration)
PCBs
PCBs (interactive)
Metals
Metals (interactive)
Individual compounds, difference plot
x-axis: Mean of d.w. trend and w.w. trend
y-axis: D.w. trend minus w.w. trend
Blue dotted line marks where d.w and w.w. trend is the same
PCBs
PCBs (interactive)
Metals
Metals (interactive)
PCBs by country
- X axis: Slope of time trend (i.e., change per year), wet-weight concentration
- Y axis: Slope of time trend (i.e., change per year), wet-weight concentration
- Blue dotted line: 1:1 line (same trend using w.w. and d.w. concentration)
UK
UK (interactive)
Ireland
IE (interactive)
France
FR (interactive)
Spain
ES (interactive)
Iceland
IS (interactive)
Norway
NO (interactive)
Metals by country
- X axis: Slope of time trend (i.e., change per year), wet-weight concentration
- Y axis: Slope of time trend (i.e., change per year), wet-weight concentration
- Blue dotted line: 1:1 line (same trend using w.w. and d.w. concentration)
UK
UK (interactive)
Ireland
IE (interactive)
France
FR (interactive)
Spain
ES (interactive)
Denmark
DK (interactive)
Iceland
IS (interactive)
Norway
